Supporting-insulator for electric wires



(No- Model.)

, L. SfBEARDSLEY. SUPPORTING INSULATOR FOR ELECTRIC WIRES.

Patented Aug. '7, 1894;

qwi/tweooeo UNITED STATES PATENT OFF CE;

LAUREN S. BEARD SLEY, OF NAUGATUCK, CONNECTICUT.

SUPPORTl NG lNSULATOR FOR ELECTRIC WIRES;

SPECIFICATION forming part of Letters Patent No. 524,100,dated August '7, 1894.

Application filed June 11, 1394.

To all whom it may concern:

1 3e it known that I, LAUREN S. BEARDSLEY, a c1t1zen of the United States, residing at Naugatuck, in the county of New Haven, State of other lines.

- The object of the'invention is to producea device for holding insulators of the kind referred to, which shall be simple and cheap in construction; which can be readily and rapidly placed in position for use or removed therefrom, when desired, which can be used with facility on a conducting or non-conduct,

ing arm or the like, and which can be applied to openings on the cross-arms of telegraph poles or the like, wherein wood or other pins have been used, and from which they have been removed by reason of having become useless on account of breakage, or other cause.

With these objects in view, the invention consists essentially of a holder for insulators comprising a pin of metal, wood, or other suitable substance, provided exteriorly with a screw-thread for the reception of the interiorscrew-threads of an insulator, with or'without having a transverse groove in its upper ends, and a bolt attached to thepin, for securing the pin in position; furthermore, the invention consists of a holder for insulators comprising a pin for the reception of an in-. sulator, the pin being provided with or without a transverse opening which may be of different shapes for the reception of a bar or rod, and a bolt attached to the pin; furthermore, the invention consists of a pin provided with screw threads designed to engagethe screw threads in the interior of a glass or other insulator, the pin having projecting therefrom a bolt, a bolster on the bolt, and means for Serial No. 514,118. (No mcdeLl securing the bolt in position; and finally, the

invention consists of various novel details of construction whereby the objectsof the 1nvention are attained.

The invention is illustrated in the accoman in drawin s, in Whic 1- p FZguFe 1 is aside elevation of a holder for insulatorsconstructed in accordance with my invention, the glass insulator and the bolster attached to the bolt being shown insection. Fig. 2- is a view showing a modified form of bolster applied to the bolt. F1g.3- is a view illustrating a modified form of holder, the bolt being formed with, orhavmg the pin attached thereto; andjFig. 4- ma view illustrating a modified form of holder, 1n which the bolt is made in the form of a metal Wood or metal lag screw, permanently attached to the pin. Fig. 5 is a V ew illustrating a modified form of holder in wh ch therod is threaded on both ends, and making a double pin.

In the drawings, A represents the main portion, or pin'of the holder. This prn may be made of metal, wood, or any other suitable substance, and to facilitate turning 11: to cause a part attached to it to enter a nut, or the like, or to cause ascrew to enter an opemng 1n the lower end, may be provided in 1ts upper end, with a transverse groove 0., for the recept1on of a tool, and with a transverse opemng a for the reception of a rod, onscrew dr1v er. upper end of the pin portlon 1s provided with screw threads a for engaging screw threads on the inner face of the insulator Below the screw-threaded portion, the pln 1s provided with flat sides a for convenience in grasping the pin with a wrench.

Projecting from the lower end of the pm A is a bolt 0, and this bolt may be formed with l the pin A, or be attached thereto in any suit- .able manner. In the preferred form of holder,

shown in Fig. 1 of the drawings, the bolt is provided at its upper end with an external screw thread designed to enter a screw threaded opening in the lower end of the pm A and at the lower end with a head or nut; in the modified form shown in Fig. 3, the bolt is permanently attached to the pm, and has its lower end adapted for the receptlon of a nut; and in the modified form shown 1n Flg.

4, the bolt is permanently attached to the pin, and has its lower end formed into a metal wood or metal lag screw, and in modified form shown in Fig. 5 has a rod threaded on both ends, the lower end being adapted to either a nut or an additional pin a.

The forms of holders shown in Figs. 1, 2, 3 and 5 are those particularly adapted for attachment to cross arms of telegraph poles and like structures, when the bolt is to be passed entirely through arms of wood or metal and secured in that position. When the holder is to be employed in the hole provided for a wooden pin, it is necessary to provide a bolster B, of a size to fit the hole, and pronon-conducting substance, and when it is to be attached to a metal arm, the bolster is of Wood, or some non-conducting substance.

In the form shown in Fig. 4:, the bolt is provided at its lower end with a metal wood or metal lag screw, designed to enter a proper opening in the body to which the holder is to be attached.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

v A holder for insulators consisting of a pin provided with screw threads designed to engage the screw threads in the interior of a glass insulator, the pin having projecting therefrom a bolt, a bolster for the bolt, and means for securing the bolt in position, substantially as described.

In testimony whereof Iaffix my signature in presence of two witnesses.

I LAUREN S. BEARDSLEY. 

